3 ms·
Naive idea: do a downscale-upscale roundtrip using bilinear interpolation and then compare that with the original. Any difference should be the added value over
by jobigoud 7y ago
Naive idea: do a downscale-upscale roundtrip using bilinear interpolation and then compare that with the original. Any difference should be the added value over the lower res. This diff image would contain noise and signal though, the final score should increase with the signal noise ratio.